Integrative taxonomy of Hemimycale (Hymedesmiidae: Poecilosclerida: Demospongiae) from Southeastern Brazil, with the description of two new species

Huguenin, Larissa; Salani, Sula; Lopes, Maira Ferreira; Albano, Rodolpho Mattos; Hajdu, Eduardo; Esteves, Eduardo

doi:10.11646/zootaxa.4442.1.7

Cited by 577 publications

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“…The genus Phorbas belongs to the class Demospongiae, order Poecilosclerida, family Hymedesmiidae [14], and is the most representative among the 10 accepted genera, which also includes Hamigera, Acanthancora, and Hemimycale [15][16][17][18]. Phorbas stands out not only in the number of isolated MNPs, but also in the large number of bioactive compounds, mainly displaying cytotoxic activity [19].…”

Section: Introductionmentioning

confidence: 99%

Exploring Chemical Diversity of Phorbas Sponges as a Source of Novel Lead Compounds in Drug Discovery

et al. 2021

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Porifera, commonly referred to as marine sponges, are acknowledged as major producers of marine natural products (MNPs). Sponges of the genus Phorbas have attracted much attention over the years. They are widespread in all continents, and several structurally unique compounds have been identified from this species. Terpenes, mainly sesterterpenoids, are the major secondary metabolites isolated from Phorbas species, even though several alkaloids and steroids have also been reported. Many of these compounds have presented interesting biological activities. Particularly, Phorbas sponges have been demonstrated to be a source of cytotoxic metabolites. In addition, MNPs exhibiting cytostatic, antimicrobial, and anti-inflammatory activities have been isolated and structurally characterized. This review provides an overview of almost 130 secondary metabolites from Phorbas sponges and their biological activities, and it covers the literature since the first study published in 1993 until November 2021, including approximately 60 records. The synthetic routes to the most interesting compounds are briefly outlined.

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Section: Introductionmentioning

confidence: 99%

Exploring Chemical Diversity of Phorbas Sponges as a Source of Novel Lead Compounds in Drug Discovery

et al. 2021

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“…The genus Phorbas belongs to the class Demospongiae, order Poecilosclerida, family Hymedesmiidae [14], being the biggest representative of the family that contains 10 accepted genera, including beyond Phorbas, Hamigera, Acanthancora, Hemimycale [15][16][17][18]. The genus Phorbas stands out in the number of isolated MNPs, but also in relation to a large number of bioactive compounds, mainly displaying cytotoxic activity [19].…”

Section: Introductionmentioning

confidence: 99%

Exploring Chemical Diversity of <em>Phorbas</em> Sponges as a Source of Novel Lead Compounds in Drug Discovery

Caso¹,

Silva²,

Esposito³

et al. 2021

Preprint

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Porifera, commonly referred to as marine sponges, have stood out as major producers of marine natural products (MNPs). Sponges of the genus Phorbas have attracted much attention along years. They are widespread in all continents, and several structurally unique compounds have been identified from species of this genus. Terpenes, mainly sesterterpenoids, represent the great majority of secondary metabolites isolated from Phorbas species, even though several alkaloids and steroids have also been reported. Many of these compounds have shown a variety of biological activities. Particularly, Phorbas sponges have been demonstrated to be a source of cytotoxic metabolites. In addition, MNPs exhibiting cytostatic, antimicrobial and anti-inflammatory activities, have been isolated and structurally characterized. This work brings an overview of Phorbas secondary metabolites reported since the first study published in 1993 until 2020, and their biological activities.

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“…These provinces were further subdivided into five ecoregions (areas of relatively homogeneous species composition, clearly distinct from adjacent systems) as shown on Figure a. This division of coastal and shelf areas of the Brazilian coast greatly influenced subsequent studies on marine conservation and biogeography (e.g., Bissoli & Bernardino, ; Huguenin et al, ; Mantelatto, Cruz, & Creed, ). Importantly, this biogeographic classification adopted an older view that the main biogeographic break in the region is Cabo Frio, which is the southest limit for coral reefs, and is in rough agreement with the 23°C isotherm data (Briggs, , ; Palacios, ).…”

Section: Introductionmentioning

confidence: 99%

Evaluating the boundaries of marine biogeographic regions of the Southwestern Atlantic using halacarid mites (Halacaridae), meiobenthic organisms with a low dispersal potential

Pepato

Vidigal

Klimov

2019

Ecology and Evolution

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Aim We evaluated traditional biogeographic boundaries of coastal marine regions in Southwestern Atlantic using DNA sequence data from common, rocky‐shore inhabiting, marine mites of the genera Agauopsis and Rhombognathus, family Halacaridae. Methods We investigated geographic population genetic structure using CO1 gene sequences, estimated divergence times using a multigene dataset and absolute time‐calibrated molecular clock analyses, and performed environmental niche modeling (ENM) of common marine mite species. Results Agauopsis legionium has a shallow history (2.01 Ma) with four geographically differentiated groups. Two of them corresponded to the traditional Amazonian and Northeastern ecoregions, but the boundary between the two other groups was inferred at the Abrolhos Plateau, not Cabo Frio. Rhombognathus levigatoides s. lat. was represented by two cryptic species that diverged 7.22 (multilocus data) or 10.01 Ma (CO1‐only analyses), with their boundary, again at the Abrolhos Plateau. ENM showed that A. legionium has suitable habitats scattered along the coast, while the two R. levigatoides cryptic species differ considerably in their niches, especially in parameters related to upwelling. This indicates that genetic isolation associated with the Abrolhos Plateau occurred in both lineages, but for the R. levigatoides species complex, ecological niche specialization was also an important factor. Main conclusions Our study suggests that the major biogeographic boundary in the Southwestern Atlantic lies not at Cabo Frio but at the Abrolhos Plateau. There two biogeographically relevant factors meet (a) changes in current directions (which limit dispersal) and (b) abrupt changes in environmental parameters associated with the South Atlantic Central Waters (SACW) upwelling (offering distinct ecological niches). We suggest that our result represents a general biogeographic pattern because a barrier at the Abrolhos Plateau was found previously for the fish genus Macrodon (phylogeographic data), prosobranch mollusks, ascidians, and reef fishes (community‐level data).

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Integrative taxonomy of Hemimycale (Hymedesmiidae: Poecilosclerida: Demospongiae) from Southeastern Brazil, with the description of two new species

Cited by 577 publications

References 0 publications

Exploring Chemical Diversity of Phorbas Sponges as a Source of Novel Lead Compounds in Drug Discovery

Exploring Chemical Diversity of Phorbas Sponges as a Source of Novel Lead Compounds in Drug Discovery

Exploring Chemical Diversity of <em>Phorbas</em> Sponges as a Source of Novel Lead Compounds in Drug Discovery

Evaluating the boundaries of marine biogeographic regions of the Southwestern Atlantic using halacarid mites (Halacaridae), meiobenthic organisms with a low dispersal potential

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